Microsoft Defender for Business
Endpoint protection

Automatic Attack Disruption in Microsoft Defender for Business - Microsoft Defender for Business | Microsoft Learn

In brief

The page title and description were updated, and wording throughout the article was revised for clarity, including role guidance and steps for reviewing incidents and releasing contained devices.

What Defender admins need to know

Administrators have clearer guidance for reviewing Attack Disruption incidents, permissions, and remediation actions.

Summaries are generated from the documentation change itself.

Documentation change

The comparison below shows only the changed extract. Use the full-page view for complete context.

Automatic attack disruptionAttack Disruption in Microsoft Defender for Business - Microsoft Defender for Business | Microsoft Learn

A human-operated attack is an active attack with the following goals:

  • Navigate the network.
  • Deploy ransomware or steal information.

These types of attacks can be catastrophic to business operations,operations. They tend to be difficult to address,address and sometimes continue to threaten business operations after the initial encounter. For more information, see Human-operated ransomware attacks.

Automatic attack disruption is designed to:

How automatic attack disruption works

Automatic attack disruption uses insights from Microsoft securitySecurity researchers and advanced AI models to counteract the complexities of advanced attacks. It limits an attacker's progress early on and dramatically reduces the overall effect of an attack, from associated costs to loss of productivity. See some examples at the Microsoft Security Blog.

WithBy using automatic attack disruption, as soon as a human-operated attack is detected on a device, the system takes steps are taken immediately to contain the affected device and user accounts on the device. AnThe system creates an incident is created in the Microsoft Defender portal (portal: https://security.microsoft.com). There, your IT/Your IT or security team can view details about the risk and containment status of compromised assets during and after the process. An Incident page provides details about the attack and up-to-date status of affected assets.

Automated response actions include:

  • Containing a device by blocking incoming/incoming or outgoing communication
  • Containing a user account by disconnecting current user connections at the device level

Important

  • To view information about a detected advanced attack, you must have an appropriate role, such as Security Reader or Security Administrator assigned.Administrator.
  • To take remediation actions, release a contained device/user, or re-enable a user account, you must have the Security Administrator role assigned.role.

For more information, see Security roles and permissions in Defender for Business.

View details about an attack in the Microsoft Defender portal

  1. In the Microsoft Defender portal, go to Incidents.

  2. Select an incident that is's tagged with Attack Disruption.

  3. Review the incident graph, which enables you tograph. You can get the entire attack story and assess the attack disruption effect and status.

  4. When you're ready to release a contained device or user account, or re-enable a user account, take one of the following steps:

    • To release a contained device, select the device, and then chooseselect Release from containment.
    • To release a contained user, select the user account, and then, in the side pane, select Undo.

Disrupted incidents include a tag for Attack Disruption and the specific threat type identified (suchidentified, such as ransomware).ransomware. If your IT/IT or security team receives incident email notifications, these tags also appear in the emails.

When an incident is disrupted, highlighted text appears below the incident title. Contained devices or user accounts are listed with a label that indicates their status.

Track attack disruption actions in the Action center

The Action center brings together all remediation and response actions, whether those actions were taken automatically or manually. You can view all automatic attack disruption actions in the Action center. And, afterAfter your IT/IT or security team mitigates the risk and completedcompletes the investigation of an incident, they can release contained assets.

  1. In the Microsoft Defender portal, go to Actions & submissions > Action center.
  2. Select the History tab.

How to get automatic attack disruption

Automatic attack disruption is built into Defender for Business; youBusiness. You don't have to explicitly turn on these capabilities. It's important to onboard all your organization's devices (computers, phones, and tablets) to Defender for Business so that they're protected as soon as possible.

Additionally, sign up to receive preview features so that you get the latest and greatest capabilities as soon as they're available. \ No newline at end of file